Overview
Two-component, polyamide-cured epoxy micaceous iron oxide (MIO) intermediate coating modified with special C6-element material (sp2 hybridization).​
It is specified for use with PLH53-35 epoxy zinc primer as a supporting coat, combining cathodic protection synergy with strong barrier performance for corrosion protection.​

Composition
Epoxy resin, micaceous iron oxide powder, anti-settling agent, toughening agent, and solvent; modified with special C6-element material (sp2 hybridization); polyamide curing agent; supplied as two components.​

Typical uses

• Ship repair/building, bridges, petrochemical facilities, steel structures, offshore platforms, underwater steel structures, pipelines, and oil tanks; used in cathodic-protection coating systems.​

Technical data (typical)

• Appearance / color: Gray.​

• Theoretical consumption: 0.14 kg/m² at 50 µm DFT (losses not included).​

• Density / specific gravity: 1.53 kg/L.​

• Drying / curing (25°C): Touch dry 1 h; hard dry 24 h; full cure 7 days.​

• Salt water resistance: 20 days.​

Application data (25°C)

• Mixing ratio (A:B): 8:1 (by weight).​

• Induction time: 5 min.​

• Pot life: 4 h.​

• Application methods: Airless spray, brush, roller.​

• Thinner / Cleaner: X-7 epoxy thinner; typical dilution 2–8% (air spray/roller may require more).​

• Recoat interval / overcoating interval (25°C): Minimum 24 h; maximum 7 days.​

• Recommended DFT: 60–90 µm per coat (brush/roller: 35–50 µm per coat).​

Surface preparation

• When applied over a two-component primer: all surfaces must be clean, dry, and free of contaminants; if the maximum recoat interval is exceeded, surface roughening is required.​

• If used directly as the first coat: abrasive blasting to Sa 2.5, or power-tool cleaning to St 3; surface profile 30–75 µm.​

System compatibility / packing / storage

• Compatible topcoats: polyurethane topcoat, fluorocarbon topcoat, etc.​

• Shelf life: 12 months.​

• Storage: Store in a dry, cool, ventilated warehouse away from fire sources and direct sunlight; outdoor storage is not permitted.​

• Packaging: Part A 27 kg; Part B 3 kg.